Ignition Timing: Testing and Inspection

BASIC SERVICE PROCEDURE


Idle Speed and Ignition Timing Check


IDLE SPEED

With CONSULT-III
Check idle speed in "DATA MONITOR" mode with CONSULT-III.

With GST
Check idle speed in Service $01 with GST.

IGNITION TIMING
Any of following two methods may be used.

Method A





1. Attach timing light to loop wire (1) as shown.

Arrow Indicates Vehicle front





2. Check ignition timing.
- Timing indicator (1)

Method B
1. Remove No. 4 ignition coil (1).





Arrow Indicates Vehicle front

2. Connect No. 4 ignition coil (1) and No. 4 spark plug with suitable high-tension wire (A) as shown, and attach timing light clamp (B) to this wire.





Arrow Indicates Vehicle front





3. Check ignition timing.





- Timing indicator (1)